Exercise apparatus



FIG. 1 is a perspective view of the exercise apparatus;

FIG. 2 is a front elevational view of the exercise apparatus;

FIG. 3 is a rear elevational view of the exercise apparatus;

FIG. 4 is a left side elevational view of the exercise apparatus;

FIG. 5 is a right side elevational view of the exercise apparatus; and,

FIG. 6 is a top plan view of the exercise apparatus.

The broken lines in the drawings depict unclaimed environmental subject matter. 

The ornamental design for a exercise apparatus, as shown and described. 